Silica sulfuric acid: a versatile and reusable heterogeneous catalyst for the synthesis of N-acyl carbamates and oxazolidinones under solvent-free conditions

  • Liqiang Wu School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, China
  • Xiaojuan Yang College of Chemistry and Chemical Engineering, Xinxiang University, Xinxiang, Henan 453003, China
  • Fulin Yan School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, China
Keywords: N-Acyl carbamates, N-Acyl oxazolidinones, Silica sulfuric acid, Solvent-free

Abstract

Silica sulfuric acid catalyzes efficiently the reaction of carbamates and oxazolidinones with anhydrides under solvent-free conditions. All the reactions were done at room temperature and the N-acyl carbamates and oxazolidinones were obtained with high yields and purity via an easy work-up procedure. This method is attractive and is in a close agreement with green chemistry.

KEY WORDS: N-Acyl carbamates, N-Acyl oxazolidinones, Silica sulfuric acid, Solvent-free

 

Bull. Chem. Soc. Ethiop. 2011, 25(1), 151-155.

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Articles

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eISSN: 1726-801X
print ISSN: 1011-3924